Впишите the,где это необходимо
1 book in the picture is red.
2 sea is blue.
3 mike is a good student.
mississippi is a long river in america
5 basketball is a nice game.​

The sea is blue.

В 1ом уже есть the,больше не надо.

В 3 тоже не надо.В 5 тоже.

1. The book in the picture is red.
The word "the" is necessary here because we are talking about a specific book that is shown in the picture. "The" is used to refer to a specific noun that both the speaker and the listener are aware of.

2. The sea is blue.
"The" is necessary here because we are talking about a specific sea. While there are many seas in the world, this sentence suggests that the speaker is referring to a particular sea that is known to both the speaker and the listener.

3. Mike is a good student.
In this sentence, "the" is not necessary. We are not talking about a specific student, but rather using the indefinite article "a" to talk about Mike as one of many good students.

4. The Mississippi is a long river in America.
"The" is necessary here because we are referring to a specific river, the Mississippi River, and it is a well-known and recognizable entity.

5. Basketball is a nice game.
"The" is not necessary here. We are not talking about a specific game of basketball, but rather using the indefinite article "a" to refer to basketball as one of many nice games.

In summary, "the" is used when we are referring to a specific, known noun, and is not necessary when we are referring to a general, indefinite noun.